/*
 * Copyright 2010 Pierre-Yves Ricau
 * 
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not
 * use this file except in compliance with the License. You may obtain a copy of
 * the License at
 * 
 * http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations under
 * the License.
 */
package com.excilys.capiq.server;

import java.io.IOException;

import javax.jdo.PersistenceManager;
import javax.jdo.Query;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import com.excilys.capiq.server.model.WrapEater;

/**
 * Servlet used to remove all {@link WrapEater} from a batch. A password
 * parameter is required.
 * 
 * @author Pierre-Yves Ricau
 * 
 */
public class CleanWrapEatersBatchServlet extends HttpServlet {

	private static final long	serialVersionUID	= 1L;

	private static final String	PASSWORD_PARAMETER	= "password";
	private static final String	PASSWORD_HASH		= "b2785e82248dc7e29858ee6e52121e23e3ad98d1";

	@Override
	protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
		String password = req.getParameter(PASSWORD_PARAMETER);

		if (password == null) {
			return;
		}

		String passwordHash = SHA1Helper.hash(password);

		if (!passwordHash.equals(PASSWORD_HASH)) {
			return;
		}

		PersistenceManager pm = PMF.getPersistenceManager();
		try {
			Query q = pm.newQuery(WrapEater.class);
			q.deletePersistentAll();
		} finally {
			pm.close();
		}

	}

}
